The issue #25289 has marked as a duplicate of this issue. I'm doing another round of updates now, although nothing related to VC 2015 or Visual Studio, however. The lastest set of updates were installed on 1/28. #Python tools for visual studio 2015 nothing happens update#Jeremy - how up to date is your build machine? It's likely this fix will come through Windows Update for most users, but since you're running debug builds I think you'll need the latest Visual Studio updates to get it. #Python tools for visual studio 2015 nothing happens how to#It's been fixed, just figuring out when the update will be available, or how to get it if it already is. It helps to have a Microsoft employee working on CPython :-) > I'll email the CRT team and see what they know about this. I'll email the CRT team and see what they know about this. But it does seem like there's potential here for simultaneous thread creation and first-time calls into OS locale functions to cause a deadlock. If the comment is in the sources, presumably it's also handled correctly. locale lock, lest we deadlock due to lock order inversion between the We must ensure that no call to LoadLibrary is made while we hold the We dynamically obtain these libraries via LoadLibrary/GetProcAddress. Some of the locale APIs are not available on all supported target OSes. acquire the locale lock in order to acquire a reference to the current Deadlock Avoidance: When a new thread is created in the process, we * " Summary: Dr Memory errors in MSVCP140D.dll when switching to VS2015" * "Sometimes it works but sometimes it never returns from it. With this option, each test file is run in a new fresh process, so it's more likely a race condition which depends on the system load (on exact timing) than the interaction with other tests running in parallel. The bug occurs in test_strptime and test_locale according to Jeremy. The oldest occurrence I can dig up is May/June of 2013 (for 2.7). Have you actually seen this occurring back to 3.3? I'd expect something like this to either be pre-3.5 or post-3.5, but not both. Help to diagnose further is greatly appreciated! Locale-using functions in the CRT have internally locking which is what I believe is the cause of the deadlock, but cannot determine exactly as this is where my debugging knowledge runs out. Order of the tests do not seem to matter as re-running the test suite using the random seed that hung will pass when run from a console on the buildbot. Windows 7 SP1 64-bit on a quad-core processor I would debug further, however my Visual Studio debugging-fu is not up to this challenge it seems. This has been happening occasionally (every tenth+ build) for quite some time, but not to the frequency as of late (every fourth build or so). My Windows BuildBot ( ) is hanging in calls to the CRT function setlocale() as determined by attaching to the hung test process in Visual Studio. #Python tools for visual studio 2015 nothing happens for free#If you don’t have a Visual Studio Subscription, you can create one for free by clicking on “Create a new Microsoft account” on the login page.Python 3.6, Python 3.3, Python 3.4, Python 3.5ĭecorater, eryksun, jkloth, paul.moore, python-dev, steve.dower, terry.reedy, tim.golden, vstinner, zach.wareĬreated on 15:44 by jkloth, last changed 21:03 by terry.reedy. To download any product from the following list, click the download button and log in with your Visual Studio Subscription account when prompted.
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